{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2008:65Y6VZZ5JBINZKAMP36OEGM7JR","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":"b1ae350fe25930f4b3a9b4dc12764c6bdb70123375ed27cf0d7b99c5a892661f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2008-11-18T14:03:08Z","title_canon_sha256":"c7b7c60e98eb77b2532ff3452d8f15e62fbb825d599a7ce702f2057c2aabab06"},"schema_version":"1.0","source":{"id":"0811.2912","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0811.2912","created_at":"2026-07-04T15:37:07Z"},{"alias_kind":"arxiv_version","alias_value":"0811.2912v1","created_at":"2026-07-04T15:37:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0811.2912","created_at":"2026-07-04T15:37:07Z"},{"alias_kind":"pith_short_12","alias_value":"65Y6VZZ5JBIN","created_at":"2026-07-04T15:37:07Z"},{"alias_kind":"pith_short_16","alias_value":"65Y6VZZ5JBINZKAM","created_at":"2026-07-04T15:37:07Z"},{"alias_kind":"pith_short_8","alias_value":"65Y6VZZ5","created_at":"2026-07-04T15:37:07Z"}],"graph_snapshots":[{"event_id":"sha256:65983a2978d9f49ed1d147e8ad18e57c3a09cb358dd1567e12f6a50f8723cbf3","target":"graph","created_at":"2026-07-04T15:37:07Z","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/0811.2912/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We extend earlier schemes for merging tree-level matrix elements with parton showers to include also merging with one-loop matrix elements. In this paper we make a first study on how to include one-loop corrections, not only for events with a given jet multiplicity, but simultaneously for several different jet multiplicities. Results are presented for the simplest non-trivial case of hadronic events at LEP as a proof-of-concept.","authors_text":"Leif Lonnblad, Nils Lavesson","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2008-11-18T14:03:08Z","title":"Extending CKKW-merging to One-Loop Matrix Elements"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0811.2912","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:dd990649d88132057c12fe0e5307c58f9e4f7bafb0e6154675671928b28649f5","target":"record","created_at":"2026-07-04T15:37:07Z","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":"b1ae350fe25930f4b3a9b4dc12764c6bdb70123375ed27cf0d7b99c5a892661f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2008-11-18T14:03:08Z","title_canon_sha256":"c7b7c60e98eb77b2532ff3452d8f15e62fbb825d599a7ce702f2057c2aabab06"},"schema_version":"1.0","source":{"id":"0811.2912","kind":"arxiv","version":1}},"canonical_sha256":"f771eae73d4850dca80c7efce2199f4c5ddfc3a6cf7e87f985d75506c59e836a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f771eae73d4850dca80c7efce2199f4c5ddfc3a6cf7e87f985d75506c59e836a","first_computed_at":"2026-07-04T15:37:07.910391Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T15:37:07.910391Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"yQz32taWWN785pij8PV6jLcXC1pSN729/9MFuNqhvoCtjFFQyfgrGMP0lsjlEEt+Q/vj+ZClV+pDtfKRfq5hAw==","signature_status":"signed_v1","signed_at":"2026-07-04T15:37:07.910802Z","signed_message":"canonical_sha256_bytes"},"source_id":"0811.2912","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:dd990649d88132057c12fe0e5307c58f9e4f7bafb0e6154675671928b28649f5","sha256:65983a2978d9f49ed1d147e8ad18e57c3a09cb358dd1567e12f6a50f8723cbf3"],"state_sha256":"792b3c9f2bf182120f4b8f29202bb32e840cd71e61de0328983847e17fe31268"}