{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:ESVLITIPQAJPSIVDE6PUF6O4BI","short_pith_number":"pith:ESVLITIP","canonical_record":{"source":{"id":"1011.1759","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2010-11-08T10:36:43Z","cross_cats_sorted":["hep-ex"],"title_canon_sha256":"5fa8c5884bc7ac878b5c03f65634b936894578841a7740c652ec30ee4242be59","abstract_canon_sha256":"c6293cf6735916b3c7f36cfe156d2c37a741a04df1ea3272cce5752f5c590c72"},"schema_version":"1.0"},"canonical_sha256":"24aab44d0f8012f922a3279f42f9dc0a07e17182530815a2d9971f85bd35ee5e","source":{"kind":"arxiv","id":"1011.1759","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1011.1759","created_at":"2026-05-18T04:26:43Z"},{"alias_kind":"arxiv_version","alias_value":"1011.1759v1","created_at":"2026-05-18T04:26:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1011.1759","created_at":"2026-05-18T04:26:43Z"},{"alias_kind":"pith_short_12","alias_value":"ESVLITIPQAJP","created_at":"2026-05-18T12:26:06Z"},{"alias_kind":"pith_short_16","alias_value":"ESVLITIPQAJPSIVD","created_at":"2026-05-18T12:26:06Z"},{"alias_kind":"pith_short_8","alias_value":"ESVLITIP","created_at":"2026-05-18T12:26:06Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:ESVLITIPQAJPSIVDE6PUF6O4BI","target":"record","payload":{"canonical_record":{"source":{"id":"1011.1759","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2010-11-08T10:36:43Z","cross_cats_sorted":["hep-ex"],"title_canon_sha256":"5fa8c5884bc7ac878b5c03f65634b936894578841a7740c652ec30ee4242be59","abstract_canon_sha256":"c6293cf6735916b3c7f36cfe156d2c37a741a04df1ea3272cce5752f5c590c72"},"schema_version":"1.0"},"canonical_sha256":"24aab44d0f8012f922a3279f42f9dc0a07e17182530815a2d9971f85bd35ee5e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:26:43.297912Z","signature_b64":"gcmvd+Ti41mQ3GXKf9yVVmmA9EC2O9JddnR5pelbggKmtL2M0l7xU21khprIg2oRfuaQpbBBaWAwsDaPx6zJAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"24aab44d0f8012f922a3279f42f9dc0a07e17182530815a2d9971f85bd35ee5e","last_reissued_at":"2026-05-18T04:26:43.297209Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:26:43.297209Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1011.1759","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":"2026-05-18T04:26:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vRUGw78/dgfber2KoU6r9V3MS7bM8JtEAJDgvfXAiBfuG048lPkZ9Y2Tda7xd8wzaespC7YVsI5BwA4wjECnBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-29T17:30:12.292033Z"},"content_sha256":"c089cf18be0a1fa7054018aa678ad43823035d8b73d1759514df98854e9bcb8e","schema_version":"1.0","event_id":"sha256:c089cf18be0a1fa7054018aa678ad43823035d8b73d1759514df98854e9bcb8e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:ESVLITIPQAJPSIVDE6PUF6O4BI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Interleaved Parton Showers and Tuning Prospects","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex"],"primary_cat":"hep-ph","authors_text":"Richard Corke, Torbj\\\"orn Sj\\\"ostrand","submitted_at":"2010-11-08T10:36:43Z","abstract_excerpt":"General-purpose Monte Carlo event generators have become important tools in particle physics, allowing the simulation of exclusive hadronic final states. In this article we examine the Pythia 8 generator, in particular focusing on its parton-shower algorithms. Some relevant new additions to the code are introduced, that should allow for a better description of data. We also implement and compare with 2 to 3 real-emission QCD matrix elements, to check how well the shower algorithm fills the phase space away from the soft and collinear regions. A tuning of the generator to Tevatron data is perfo"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1011.1759","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":"2026-05-18T04:26:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"n2E2+0DUsVsX8ClJl6CrLfo9sMinQwVdHUEZnU4TvH43/MUjrhdCOgVIvoa+PUqhz2ReRewVbV449Maa+YB6Dg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-29T17:30:12.292438Z"},"content_sha256":"7a655030ae408336b62dd7e280a8142a2266e52a01f29a10515eabba28e14a66","schema_version":"1.0","event_id":"sha256:7a655030ae408336b62dd7e280a8142a2266e52a01f29a10515eabba28e14a66"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ESVLITIPQAJPSIVDE6PUF6O4BI/bundle.json","state_url":"https://pith.science/pith/ESVLITIPQAJPSIVDE6PUF6O4BI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ESVLITIPQAJPSIVDE6PUF6O4BI/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":"2026-05-29T17:30:12Z","links":{"resolver":"https://pith.science/pith/ESVLITIPQAJPSIVDE6PUF6O4BI","bundle":"https://pith.science/pith/ESVLITIPQAJPSIVDE6PUF6O4BI/bundle.json","state":"https://pith.science/pith/ESVLITIPQAJPSIVDE6PUF6O4BI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ESVLITIPQAJPSIVDE6PUF6O4BI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:ESVLITIPQAJPSIVDE6PUF6O4BI","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":"c6293cf6735916b3c7f36cfe156d2c37a741a04df1ea3272cce5752f5c590c72","cross_cats_sorted":["hep-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2010-11-08T10:36:43Z","title_canon_sha256":"5fa8c5884bc7ac878b5c03f65634b936894578841a7740c652ec30ee4242be59"},"schema_version":"1.0","source":{"id":"1011.1759","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1011.1759","created_at":"2026-05-18T04:26:43Z"},{"alias_kind":"arxiv_version","alias_value":"1011.1759v1","created_at":"2026-05-18T04:26:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1011.1759","created_at":"2026-05-18T04:26:43Z"},{"alias_kind":"pith_short_12","alias_value":"ESVLITIPQAJP","created_at":"2026-05-18T12:26:06Z"},{"alias_kind":"pith_short_16","alias_value":"ESVLITIPQAJPSIVD","created_at":"2026-05-18T12:26:06Z"},{"alias_kind":"pith_short_8","alias_value":"ESVLITIP","created_at":"2026-05-18T12:26:06Z"}],"graph_snapshots":[{"event_id":"sha256:7a655030ae408336b62dd7e280a8142a2266e52a01f29a10515eabba28e14a66","target":"graph","created_at":"2026-05-18T04:26:43Z","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":"General-purpose Monte Carlo event generators have become important tools in particle physics, allowing the simulation of exclusive hadronic final states. In this article we examine the Pythia 8 generator, in particular focusing on its parton-shower algorithms. Some relevant new additions to the code are introduced, that should allow for a better description of data. We also implement and compare with 2 to 3 real-emission QCD matrix elements, to check how well the shower algorithm fills the phase space away from the soft and collinear regions. A tuning of the generator to Tevatron data is perfo","authors_text":"Richard Corke, Torbj\\\"orn Sj\\\"ostrand","cross_cats":["hep-ex"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2010-11-08T10:36:43Z","title":"Interleaved Parton Showers and Tuning Prospects"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1011.1759","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:c089cf18be0a1fa7054018aa678ad43823035d8b73d1759514df98854e9bcb8e","target":"record","created_at":"2026-05-18T04:26:43Z","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":"c6293cf6735916b3c7f36cfe156d2c37a741a04df1ea3272cce5752f5c590c72","cross_cats_sorted":["hep-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2010-11-08T10:36:43Z","title_canon_sha256":"5fa8c5884bc7ac878b5c03f65634b936894578841a7740c652ec30ee4242be59"},"schema_version":"1.0","source":{"id":"1011.1759","kind":"arxiv","version":1}},"canonical_sha256":"24aab44d0f8012f922a3279f42f9dc0a07e17182530815a2d9971f85bd35ee5e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"24aab44d0f8012f922a3279f42f9dc0a07e17182530815a2d9971f85bd35ee5e","first_computed_at":"2026-05-18T04:26:43.297209Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:26:43.297209Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"gcmvd+Ti41mQ3GXKf9yVVmmA9EC2O9JddnR5pelbggKmtL2M0l7xU21khprIg2oRfuaQpbBBaWAwsDaPx6zJAA==","signature_status":"signed_v1","signed_at":"2026-05-18T04:26:43.297912Z","signed_message":"canonical_sha256_bytes"},"source_id":"1011.1759","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c089cf18be0a1fa7054018aa678ad43823035d8b73d1759514df98854e9bcb8e","sha256:7a655030ae408336b62dd7e280a8142a2266e52a01f29a10515eabba28e14a66"],"state_sha256":"83522a2ab27868eeca3791cee68e8614e3fefe42d89fc90c9ef355d99b2984a3"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jndOYZLRvNWl7RGWmF1Fhh+pDksI9ZHu7F7H1AJGVe4CM9fA5oZK8FRjf8cxtixuVxV3WNtmlIOWkRNZAlkAAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-29T17:30:12.294765Z","bundle_sha256":"8c8c7f8c8d0f203aba8b4bff19f4309df48aba4d0f75bd312d7e34c8ee2ebd27"}}