{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1998:JJ3U4RT7YNTBUNBRFU53O5PW6Y","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":"ce7ae8a20a8446785086fc3ae2a8a0be62d557f0f2bc0894fbf62c43964ec25c","cross_cats_sorted":[],"license":"","primary_cat":"hep-ph","submitted_at":"1998-07-31T19:22:17Z","title_canon_sha256":"4dbd7ac8e8d31f25edde2dbada95c6e6824cbd50aefc135785ba3cd98119ca1c"},"schema_version":"1.0","source":{"id":"hep-ph/9807572","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ph/9807572","created_at":"2026-05-18T02:36:57Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/9807572v2","created_at":"2026-05-18T02:36:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/9807572","created_at":"2026-05-18T02:36:57Z"},{"alias_kind":"pith_short_12","alias_value":"JJ3U4RT7YNTB","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_16","alias_value":"JJ3U4RT7YNTBUNBR","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_8","alias_value":"JJ3U4RT7","created_at":"2026-05-18T12:25:49Z"}],"graph_snapshots":[{"event_id":"sha256:3cada860fc5a03717d1db3e7c1c426cf82c8951b0826063f94225e560a4ee59e","target":"graph","created_at":"2026-05-18T02:36:57Z","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 new method to solve in a semianalytical way the Dokshitzer-Gribov-Lipatov-Altarelli-Parisi evolution equations at NLO order in the x-space. The method allows to construct an evolution operator expressed in form of a rapidly convergent series of matrices, depending only on the splitting functions. This operator, acting on a generic initial distribution, provides a very accurate solution in a short computer time (only a few hundredth of second). As an example, we apply the method, useful to solve a wide class of systems of integrodifferential equations, to the polarized parton distr","authors_text":"Egidio Scrimieri, Pietro Santorelli","cross_cats":[],"headline":"","license":"","primary_cat":"hep-ph","submitted_at":"1998-07-31T19:22:17Z","title":"A Semianalytical Method to Evolve Parton Distributions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/9807572","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:d09ceb051ad6efde917a0cc7d6a7de995261abd41ba5405914f978c9c9c26bd3","target":"record","created_at":"2026-05-18T02:36:57Z","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":"ce7ae8a20a8446785086fc3ae2a8a0be62d557f0f2bc0894fbf62c43964ec25c","cross_cats_sorted":[],"license":"","primary_cat":"hep-ph","submitted_at":"1998-07-31T19:22:17Z","title_canon_sha256":"4dbd7ac8e8d31f25edde2dbada95c6e6824cbd50aefc135785ba3cd98119ca1c"},"schema_version":"1.0","source":{"id":"hep-ph/9807572","kind":"arxiv","version":2}},"canonical_sha256":"4a774e467fc3661a34312d3bb775f6f60a61f2f925d4821db71afa5dfa842164","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4a774e467fc3661a34312d3bb775f6f60a61f2f925d4821db71afa5dfa842164","first_computed_at":"2026-05-18T02:36:57.677431Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:36:57.677431Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"657l2EqL5mcrIfkEA3HLAUnEki+r1XfuiG86zJalfnjnyYLv+6SBLKDKdv0Nulxr2h5Wyn9oCRHaOhYyvVqSBg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:36:57.678225Z","signed_message":"canonical_sha256_bytes"},"source_id":"hep-ph/9807572","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d09ceb051ad6efde917a0cc7d6a7de995261abd41ba5405914f978c9c9c26bd3","sha256:3cada860fc5a03717d1db3e7c1c426cf82c8951b0826063f94225e560a4ee59e"],"state_sha256":"7ab2bc74757223a8f929e960e89b778aab21ee391e4f99190e7df19511949bb4"}