{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2025:OWTV3PLIYGURT2ICKHAIBP7NTP","short_pith_number":"pith:OWTV3PLI","schema_version":"1.0","canonical_sha256":"75a75dbd68c1a919e90251c080bfed9bc8731fdd6b9b9c562fd9e126bf964c55","source":{"kind":"arxiv","id":"2507.22969","version":1},"attestation_state":"computed","paper":{"title":"Fant\\^omas Unconfined: global QCD fits with B\\'ezier parameterizations","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Aurore Courtoy, Fredrick Olness, Lucas Kotz, Maximiliano Ponce-Chavez, Pavel Nadolsky, T. J. Hobbs, Varada Purohit","submitted_at":"2025-07-30T18:00:00Z","abstract_excerpt":"Fant\\^omas is a C++ toolkit for exploring the parametrization dependence of parton distribution functions (PDFs) and other correlator functions in quantum chromodynamics (QCD). Fant\\^omas facilitates the generation of adaptable polynomial parametrizations for PDFs, called metamorphs, to find best-fit PDF solutions and quantify the epistemic uncertainty associated with the parametrizations during their fitting. The method employs B\\'ezier curves as universal approximators for a variety of PDF shapes. Integrated into the xFitter framework for the global QCD analysis, Fant\\^omas provides a founda"},"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":"2507.22969","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2025-07-30T18:00:00Z","cross_cats_sorted":[],"title_canon_sha256":"5d10ff7d0764724a6b2934b7cf1e5a3aaf9f2e89b43df737c8179c2d10c36044","abstract_canon_sha256":"a65fd78503ee6c760c6f091657d502dd6e41abfa7eeec02dd0b73e94c754846a"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:46:03.061470Z","signature_b64":"HBQwBjOi/7djMiKp66FKLbESRZ1Jug7RnvbeSvryc6t3L5AZQ5ttvJQKdkfvTdIXRp4v0V/bC3YhAA2TKlz3Bw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"75a75dbd68c1a919e90251c080bfed9bc8731fdd6b9b9c562fd9e126bf964c55","last_reissued_at":"2026-07-05T11:46:03.060922Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:46:03.060922Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Fant\\^omas Unconfined: global QCD fits with B\\'ezier parameterizations","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Aurore Courtoy, Fredrick Olness, Lucas Kotz, Maximiliano Ponce-Chavez, Pavel Nadolsky, T. J. Hobbs, Varada Purohit","submitted_at":"2025-07-30T18:00:00Z","abstract_excerpt":"Fant\\^omas is a C++ toolkit for exploring the parametrization dependence of parton distribution functions (PDFs) and other correlator functions in quantum chromodynamics (QCD). Fant\\^omas facilitates the generation of adaptable polynomial parametrizations for PDFs, called metamorphs, to find best-fit PDF solutions and quantify the epistemic uncertainty associated with the parametrizations during their fitting. The method employs B\\'ezier curves as universal approximators for a variety of PDF shapes. Integrated into the xFitter framework for the global QCD analysis, Fant\\^omas provides a founda"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2507.22969","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/2507.22969/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":"2507.22969","created_at":"2026-07-05T11:46:03.060992+00:00"},{"alias_kind":"arxiv_version","alias_value":"2507.22969v1","created_at":"2026-07-05T11:46:03.060992+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2507.22969","created_at":"2026-07-05T11:46:03.060992+00:00"},{"alias_kind":"pith_short_12","alias_value":"OWTV3PLIYGUR","created_at":"2026-07-05T11:46:03.060992+00:00"},{"alias_kind":"pith_short_16","alias_value":"OWTV3PLIYGURT2IC","created_at":"2026-07-05T11:46:03.060992+00:00"},{"alias_kind":"pith_short_8","alias_value":"OWTV3PLI","created_at":"2026-07-05T11:46:03.060992+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":0,"sample":[{"citing_arxiv_id":"2604.28154","citing_title":"Mapping data sensitivities in global QCD analysis with linear response and influence functions","ref_index":29,"is_internal_anchor":false}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/OWTV3PLIYGURT2ICKHAIBP7NTP","json":"https://pith.science/pith/OWTV3PLIYGURT2ICKHAIBP7NTP.json","graph_json":"https://pith.science/api/pith-number/OWTV3PLIYGURT2ICKHAIBP7NTP/graph.json","events_json":"https://pith.science/api/pith-number/OWTV3PLIYGURT2ICKHAIBP7NTP/events.json","paper":"https://pith.science/paper/OWTV3PLI"},"agent_actions":{"view_html":"https://pith.science/pith/OWTV3PLIYGURT2ICKHAIBP7NTP","download_json":"https://pith.science/pith/OWTV3PLIYGURT2ICKHAIBP7NTP.json","view_paper":"https://pith.science/paper/OWTV3PLI","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2507.22969&json=true","fetch_graph":"https://pith.science/api/pith-number/OWTV3PLIYGURT2ICKHAIBP7NTP/graph.json","fetch_events":"https://pith.science/api/pith-number/OWTV3PLIYGURT2ICKHAIBP7NTP/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/OWTV3PLIYGURT2ICKHAIBP7NTP/action/timestamp_anchor","attest_storage":"https://pith.science/pith/OWTV3PLIYGURT2ICKHAIBP7NTP/action/storage_attestation","attest_author":"https://pith.science/pith/OWTV3PLIYGURT2ICKHAIBP7NTP/action/author_attestation","sign_citation":"https://pith.science/pith/OWTV3PLIYGURT2ICKHAIBP7NTP/action/citation_signature","submit_replication":"https://pith.science/pith/OWTV3PLIYGURT2ICKHAIBP7NTP/action/replication_record"}},"created_at":"2026-07-05T11:46:03.060992+00:00","updated_at":"2026-07-05T11:46:03.060992+00:00"}