{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:LNTNHDR4ITINUFO7TJXUE2A6R5","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":"c8a76f1ed0d3241c856a6c17eb463f8e5dcba37bb45f6a6d6c4dccea4c2a5d24","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2016-03-10T06:43:20Z","title_canon_sha256":"e1a784dbfbfa6f17dd236be3ba69d8c43a33505297a0e1dce5b2b726a29d0773"},"schema_version":"1.0","source":{"id":"1603.03157","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1603.03157","created_at":"2026-05-18T01:11:58Z"},{"alias_kind":"arxiv_version","alias_value":"1603.03157v2","created_at":"2026-05-18T01:11:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1603.03157","created_at":"2026-05-18T01:11:58Z"},{"alias_kind":"pith_short_12","alias_value":"LNTNHDR4ITIN","created_at":"2026-05-18T12:30:29Z"},{"alias_kind":"pith_short_16","alias_value":"LNTNHDR4ITINUFO7","created_at":"2026-05-18T12:30:29Z"},{"alias_kind":"pith_short_8","alias_value":"LNTNHDR4","created_at":"2026-05-18T12:30:29Z"}],"graph_snapshots":[{"event_id":"sha256:e7160e5c5143a99b8adec6be9ab4ab71d0439f103593d5ac5a2c2fcd6601b492","target":"graph","created_at":"2026-05-18T01:11:58Z","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":"We present a first QCD analysis of next-to-next-leading-order (NNLO) contributions of the spin-dependent parton distribution functions (PPDFs) in the nucleon and their uncertainties using the Jacobi polynomial approach. Having the NNLO contributions of the quark-quark and gluon-quark splitting functions in perturbative QCD (Nucl. Phys. B 889 (2014) 351-400), one can obtain the evolution of longitudinally polarized parton densities of hadrons up to NNLO accuracy of QCD. A very large sets of recent and up-to-date experimental data of spin structure functions of the proton $g_1^p$, neutron $g_1^n","authors_text":"F. Taghavi Shahri, Hamzeh Khanpour, S. Atashbar Tehrani, Z. Alizadeh Yazdi","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2016-03-10T06:43:20Z","title":"Next-to-next-to-leading order QCD analysis of spin-dependent parton distribution functions and their uncertainties: Jacobi polynomials approach"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1603.03157","kind":"arxiv","version":2},"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":"sha256:3d5461c6f09b8ecde64df5a0d78a53dbd94e85b7e0537f7972904bccf1d36343","target":"record","created_at":"2026-05-18T01:11:58Z","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":"c8a76f1ed0d3241c856a6c17eb463f8e5dcba37bb45f6a6d6c4dccea4c2a5d24","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2016-03-10T06:43:20Z","title_canon_sha256":"e1a784dbfbfa6f17dd236be3ba69d8c43a33505297a0e1dce5b2b726a29d0773"},"schema_version":"1.0","source":{"id":"1603.03157","kind":"arxiv","version":2}},"canonical_sha256":"5b66d38e3c44d0da15df9a6f42681e8f535a1672989f668a6c268384a25e5e5f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5b66d38e3c44d0da15df9a6f42681e8f535a1672989f668a6c268384a25e5e5f","first_computed_at":"2026-05-18T01:11:58.990064Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:11:58.990064Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"/RKBszsC12kDATmg5FEfwXMM4bJcbSxDHTRO/qIyb5HdxmAe2z4ug2aKV98kCLrvWIMYZZb3UzjGm+1H3rNaAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:11:58.990431Z","signed_message":"canonical_sha256_bytes"},"source_id":"1603.03157","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3d5461c6f09b8ecde64df5a0d78a53dbd94e85b7e0537f7972904bccf1d36343","sha256:e7160e5c5143a99b8adec6be9ab4ab71d0439f103593d5ac5a2c2fcd6601b492"],"state_sha256":"f0c7eeb8808d583bdf3d564711d0c69e25fbf0f723504029834edd9069ca091c"}