{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:P24JAP2N6YGNOJS62SBB2C27YX","short_pith_number":"pith:P24JAP2N","canonical_record":{"source":{"id":"2108.10817","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/publicdomain/zero/1.0/","primary_cat":"hep-ph","submitted_at":"2021-08-24T16:08:07Z","cross_cats_sorted":[],"title_canon_sha256":"7cd8ee23962f0c4c05124de86b86a65f6294befbdd8969be82b70f8a11d243cd","abstract_canon_sha256":"1c2ec81d292ce782965eb534cdf1f871b65fd9bb96be8fc89973826c52e3bd0e"},"schema_version":"1.0"},"canonical_sha256":"7eb8903f4df60cd7265ed4821d0b5fc5ea0a863b54856e90a03da6d6e35178dd","source":{"kind":"arxiv","id":"2108.10817","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2108.10817","created_at":"2026-07-05T04:17:15Z"},{"alias_kind":"arxiv_version","alias_value":"2108.10817v1","created_at":"2026-07-05T04:17:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2108.10817","created_at":"2026-07-05T04:17:15Z"},{"alias_kind":"pith_short_12","alias_value":"P24JAP2N6YGN","created_at":"2026-07-05T04:17:15Z"},{"alias_kind":"pith_short_16","alias_value":"P24JAP2N6YGNOJS6","created_at":"2026-07-05T04:17:15Z"},{"alias_kind":"pith_short_8","alias_value":"P24JAP2N","created_at":"2026-07-05T04:17:15Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:P24JAP2N6YGNOJS62SBB2C27YX","target":"record","payload":{"canonical_record":{"source":{"id":"2108.10817","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/publicdomain/zero/1.0/","primary_cat":"hep-ph","submitted_at":"2021-08-24T16:08:07Z","cross_cats_sorted":[],"title_canon_sha256":"7cd8ee23962f0c4c05124de86b86a65f6294befbdd8969be82b70f8a11d243cd","abstract_canon_sha256":"1c2ec81d292ce782965eb534cdf1f871b65fd9bb96be8fc89973826c52e3bd0e"},"schema_version":"1.0"},"canonical_sha256":"7eb8903f4df60cd7265ed4821d0b5fc5ea0a863b54856e90a03da6d6e35178dd","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T04:17:15.820405Z","signature_b64":"ezrxeDjkKtdcbKzwpglVIOECajpJ90ZmmCh1I84suWOxeWNqEmjaI38fMS3ILeRVZVWkbtcr7P0KRjUoTt8UCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7eb8903f4df60cd7265ed4821d0b5fc5ea0a863b54856e90a03da6d6e35178dd","last_reissued_at":"2026-07-05T04:17:15.819923Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T04:17:15.819923Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2108.10817","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":"2026-07-05T04:17:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SBVv9mWyxsBITKvXiKE6lUOAsQ/0o+mVwPcxSKUqLG8YaPTTlXc0xKJSmmCZ6KjEqkXe/d6J5mgBeSVvi4mtBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T19:18:49.076594Z"},"content_sha256":"3e8af1664c07814f22639b6fbdd72824e933590be2976d3b16fc578a7e0d302d","schema_version":"1.0","event_id":"sha256:3e8af1664c07814f22639b6fbdd72824e933590be2976d3b16fc578a7e0d302d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:P24JAP2N6YGNOJS62SBB2C27YX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Implementation of Angularly Ordered Electroweak Parton Shower in Herwig 7","license":"http://creativecommons.org/publicdomain/zero/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"M.R. Masouminia, P. Richardson","submitted_at":"2021-08-24T16:08:07Z","abstract_excerpt":"We discuss the necessary steps for implementing an angularly ordered (AO) electroweak (EW) parton shower in Herwig 7 multi-purpose event generator. This includes calculating the helicity-dependent quasi-collinear EW branching functions that correspond to the full range of final-state EW parton shower, in addition to the initial-state EW gauge vector boson radiations. The results are successfully embedded in the AO Herwig 7 shower algorithm and have undergone a set of comprehensive and conclusive performance tests. Furthermore, we have used this EW parton shower algorithm, alongside the existin"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2108.10817","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/2108.10817/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":"2026-07-05T04:17:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vPgVGtlX3GSui9j3wBM2TtQpSLdY3WbtZ2Hzi/zRWtXf0i3VTm4zMXNraT9wpJhJzYnrzkE2e67NM2PIuu2FAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T19:18:49.077089Z"},"content_sha256":"50d0966b110e4278b253efccac603fcc0669fdccd68128b0e0112c27bc86f6af","schema_version":"1.0","event_id":"sha256:50d0966b110e4278b253efccac603fcc0669fdccd68128b0e0112c27bc86f6af"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/P24JAP2N6YGNOJS62SBB2C27YX/bundle.json","state_url":"https://pith.science/pith/P24JAP2N6YGNOJS62SBB2C27YX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/P24JAP2N6YGNOJS62SBB2C27YX/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":"2026-08-03T19:18:49Z","links":{"resolver":"https://pith.science/pith/P24JAP2N6YGNOJS62SBB2C27YX","bundle":"https://pith.science/pith/P24JAP2N6YGNOJS62SBB2C27YX/bundle.json","state":"https://pith.science/pith/P24JAP2N6YGNOJS62SBB2C27YX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/P24JAP2N6YGNOJS62SBB2C27YX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:P24JAP2N6YGNOJS62SBB2C27YX","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":"1c2ec81d292ce782965eb534cdf1f871b65fd9bb96be8fc89973826c52e3bd0e","cross_cats_sorted":[],"license":"http://creativecommons.org/publicdomain/zero/1.0/","primary_cat":"hep-ph","submitted_at":"2021-08-24T16:08:07Z","title_canon_sha256":"7cd8ee23962f0c4c05124de86b86a65f6294befbdd8969be82b70f8a11d243cd"},"schema_version":"1.0","source":{"id":"2108.10817","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2108.10817","created_at":"2026-07-05T04:17:15Z"},{"alias_kind":"arxiv_version","alias_value":"2108.10817v1","created_at":"2026-07-05T04:17:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2108.10817","created_at":"2026-07-05T04:17:15Z"},{"alias_kind":"pith_short_12","alias_value":"P24JAP2N6YGN","created_at":"2026-07-05T04:17:15Z"},{"alias_kind":"pith_short_16","alias_value":"P24JAP2N6YGNOJS6","created_at":"2026-07-05T04:17:15Z"},{"alias_kind":"pith_short_8","alias_value":"P24JAP2N","created_at":"2026-07-05T04:17:15Z"}],"graph_snapshots":[{"event_id":"sha256:50d0966b110e4278b253efccac603fcc0669fdccd68128b0e0112c27bc86f6af","target":"graph","created_at":"2026-07-05T04:17:15Z","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/2108.10817/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We discuss the necessary steps for implementing an angularly ordered (AO) electroweak (EW) parton shower in Herwig 7 multi-purpose event generator. This includes calculating the helicity-dependent quasi-collinear EW branching functions that correspond to the full range of final-state EW parton shower, in addition to the initial-state EW gauge vector boson radiations. The results are successfully embedded in the AO Herwig 7 shower algorithm and have undergone a set of comprehensive and conclusive performance tests. Furthermore, we have used this EW parton shower algorithm, alongside the existin","authors_text":"M.R. Masouminia, P. Richardson","cross_cats":[],"headline":"","license":"http://creativecommons.org/publicdomain/zero/1.0/","primary_cat":"hep-ph","submitted_at":"2021-08-24T16:08:07Z","title":"Implementation of Angularly Ordered Electroweak Parton Shower in Herwig 7"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2108.10817","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":"sha256:3e8af1664c07814f22639b6fbdd72824e933590be2976d3b16fc578a7e0d302d","target":"record","created_at":"2026-07-05T04:17:15Z","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":"1c2ec81d292ce782965eb534cdf1f871b65fd9bb96be8fc89973826c52e3bd0e","cross_cats_sorted":[],"license":"http://creativecommons.org/publicdomain/zero/1.0/","primary_cat":"hep-ph","submitted_at":"2021-08-24T16:08:07Z","title_canon_sha256":"7cd8ee23962f0c4c05124de86b86a65f6294befbdd8969be82b70f8a11d243cd"},"schema_version":"1.0","source":{"id":"2108.10817","kind":"arxiv","version":1}},"canonical_sha256":"7eb8903f4df60cd7265ed4821d0b5fc5ea0a863b54856e90a03da6d6e35178dd","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7eb8903f4df60cd7265ed4821d0b5fc5ea0a863b54856e90a03da6d6e35178dd","first_computed_at":"2026-07-05T04:17:15.819923Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:17:15.819923Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ezrxeDjkKtdcbKzwpglVIOECajpJ90ZmmCh1I84suWOxeWNqEmjaI38fMS3ILeRVZVWkbtcr7P0KRjUoTt8UCA==","signature_status":"signed_v1","signed_at":"2026-07-05T04:17:15.820405Z","signed_message":"canonical_sha256_bytes"},"source_id":"2108.10817","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3e8af1664c07814f22639b6fbdd72824e933590be2976d3b16fc578a7e0d302d","sha256:50d0966b110e4278b253efccac603fcc0669fdccd68128b0e0112c27bc86f6af"],"state_sha256":"ec0ef00d02f3a7f7c842b4a1169438061a986fc60722af684040816e760773fc"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/MEBt/Y2rCYOBm0vgPSoZUzglAiikpW+r2Mfg4RmxpIDd42gUNFrIckZIozQoJYaOy+nhVA9J/3x69sUd0A/Aw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-03T19:18:49.082221Z","bundle_sha256":"e0a41a32d1500d85ffdcc71358741b437052a1016a65ac4db91e216db6502db9"}}