{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2019:IV4AOS7F2OVCTOJERI7RLK3JNE","short_pith_number":"pith:IV4AOS7F","schema_version":"1.0","canonical_sha256":"4578074be5d3aa29b9248a3f15ab696914db0a13dbee4be18f9f18952177d9af","source":{"kind":"arxiv","id":"1909.02280","version":1},"attestation_state":"computed","paper":{"title":"Inclusion of the $^3P_0$ model in PYTHIA 8","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Albi Kerbizi, Leif L\\\"onnblad","submitted_at":"2019-09-05T09:29:58Z","abstract_excerpt":"The spin effects in the hadronization process have been included for the first time in the PYTHIA 8 event generator. The spin effects are limited to the production of pseudo-scalar mesons and are obtained from the propagation of the quark polarization along the fragmentation chain according to the rules of the so-called $^3P_0$ model. The interface between PYTHIA 8 and the package of the $^3P_0$ model is presented together with preliminary results on the Collins and di-hadron asymmetries as obtained from simulations of the transversely polarized semi-inclusive deep inelastic scattering process"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1909.02280","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2019-09-05T09:29:58Z","cross_cats_sorted":[],"title_canon_sha256":"aa874c36f9bee58dceeff03f7a29c8687b973a27e763543e4a7695daa2ff407e","abstract_canon_sha256":"cfb8e07c7c364ca501f6b7492e75d51e9d399c48527bf7b88d48be7e6b159813"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:02:32.466992Z","signature_b64":"n8yrhbEWJeIg5CZ73fI7kA07c6FGspBxyLEmJ5brcC6n7E9G2R4jpoqkp+pl/kjPPkv1U2anuOUsJniU4FqXAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4578074be5d3aa29b9248a3f15ab696914db0a13dbee4be18f9f18952177d9af","last_reissued_at":"2026-07-05T00:02:32.466498Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:02:32.466498Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Inclusion of the $^3P_0$ model in PYTHIA 8","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Albi Kerbizi, Leif L\\\"onnblad","submitted_at":"2019-09-05T09:29:58Z","abstract_excerpt":"The spin effects in the hadronization process have been included for the first time in the PYTHIA 8 event generator. The spin effects are limited to the production of pseudo-scalar mesons and are obtained from the propagation of the quark polarization along the fragmentation chain according to the rules of the so-called $^3P_0$ model. The interface between PYTHIA 8 and the package of the $^3P_0$ model is presented together with preliminary results on the Collins and di-hadron asymmetries as obtained from simulations of the transversely polarized semi-inclusive deep inelastic scattering process"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1909.02280","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/1909.02280/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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1909.02280","created_at":"2026-07-05T00:02:32.466565+00:00"},{"alias_kind":"arxiv_version","alias_value":"1909.02280v1","created_at":"2026-07-05T00:02:32.466565+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1909.02280","created_at":"2026-07-05T00:02:32.466565+00:00"},{"alias_kind":"pith_short_12","alias_value":"IV4AOS7F2OVC","created_at":"2026-07-05T00:02:32.466565+00:00"},{"alias_kind":"pith_short_16","alias_value":"IV4AOS7F2OVCTOJE","created_at":"2026-07-05T00:02:32.466565+00:00"},{"alias_kind":"pith_short_8","alias_value":"IV4AOS7F","created_at":"2026-07-05T00:02:32.466565+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/IV4AOS7F2OVCTOJERI7RLK3JNE","json":"https://pith.science/pith/IV4AOS7F2OVCTOJERI7RLK3JNE.json","graph_json":"https://pith.science/api/pith-number/IV4AOS7F2OVCTOJERI7RLK3JNE/graph.json","events_json":"https://pith.science/api/pith-number/IV4AOS7F2OVCTOJERI7RLK3JNE/events.json","paper":"https://pith.science/paper/IV4AOS7F"},"agent_actions":{"view_html":"https://pith.science/pith/IV4AOS7F2OVCTOJERI7RLK3JNE","download_json":"https://pith.science/pith/IV4AOS7F2OVCTOJERI7RLK3JNE.json","view_paper":"https://pith.science/paper/IV4AOS7F","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1909.02280&json=true","fetch_graph":"https://pith.science/api/pith-number/IV4AOS7F2OVCTOJERI7RLK3JNE/graph.json","fetch_events":"https://pith.science/api/pith-number/IV4AOS7F2OVCTOJERI7RLK3JNE/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/IV4AOS7F2OVCTOJERI7RLK3JNE/action/timestamp_anchor","attest_storage":"https://pith.science/pith/IV4AOS7F2OVCTOJERI7RLK3JNE/action/storage_attestation","attest_author":"https://pith.science/pith/IV4AOS7F2OVCTOJERI7RLK3JNE/action/author_attestation","sign_citation":"https://pith.science/pith/IV4AOS7F2OVCTOJERI7RLK3JNE/action/citation_signature","submit_replication":"https://pith.science/pith/IV4AOS7F2OVCTOJERI7RLK3JNE/action/replication_record"}},"created_at":"2026-07-05T00:02:32.466565+00:00","updated_at":"2026-07-05T00:02:32.466565+00:00"}