{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:YCFTJGI66RMLB673BAQA2EIVKX","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":"1631ec50cdab8c84d88748f2ab416983e175535cef11c392bada89cb299eb0f6","cross_cats_sorted":["hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2012-07-04T20:04:12Z","title_canon_sha256":"f586ccce6dd7e580787aa65be48598bba70e5ed46372995ed5d7bea23b3e4afe"},"schema_version":"1.0","source":{"id":"1207.1110","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1207.1110","created_at":"2026-05-18T03:22:39Z"},{"alias_kind":"arxiv_version","alias_value":"1207.1110v2","created_at":"2026-05-18T03:22:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1207.1110","created_at":"2026-05-18T03:22:39Z"},{"alias_kind":"pith_short_12","alias_value":"YCFTJGI66RML","created_at":"2026-05-18T12:27:27Z"},{"alias_kind":"pith_short_16","alias_value":"YCFTJGI66RMLB673","created_at":"2026-05-18T12:27:27Z"},{"alias_kind":"pith_short_8","alias_value":"YCFTJGI6","created_at":"2026-05-18T12:27:27Z"}],"graph_snapshots":[{"event_id":"sha256:53cbb8c8251e26cb6a1af085d3179af1a5c3c0f90fad41b3e04e449d4a7fb701","target":"graph","created_at":"2026-05-18T03:22:39Z","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 determine the second Mellin moment of the isovector quark parton distribution function <x>_{u-d} from lattice QCD with N_f=2 sea quark flavours, employing the non-perturbatively improved Wilson-Sheikholeslami-Wohlert action at a pseudoscalar mass of 157(6) MeV. The result is converted non-perturbatively to the RI'-MOM scheme and then perturbatively to the MSbar scheme at a scale mu = 2 GeV. As the quark mass is reduced we find the lattice prediction to approach the value extracted from experiments.","authors_text":"Andrea Nobile, Andreas Schafer, Andre Sternbeck, Benjamin Glaessle, Dirk Pleiter, Gunnar S. Bali, Johannes Najjar, Meinulf Gockeler, Mridupawan Deka, Sara Collins","cross_cats":["hep-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2012-07-04T20:04:12Z","title":"<x>_{u-d} from lattice QCD at nearly physical quark masses"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1207.1110","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:abd3ac00e54cfd501a25d58535596af74f72fd44214005183c132857a24d6854","target":"record","created_at":"2026-05-18T03:22:39Z","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":"1631ec50cdab8c84d88748f2ab416983e175535cef11c392bada89cb299eb0f6","cross_cats_sorted":["hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2012-07-04T20:04:12Z","title_canon_sha256":"f586ccce6dd7e580787aa65be48598bba70e5ed46372995ed5d7bea23b3e4afe"},"schema_version":"1.0","source":{"id":"1207.1110","kind":"arxiv","version":2}},"canonical_sha256":"c08b34991ef458b0fbfb08200d111555e33d53fa24524025ba9d2f9e86a45a5a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c08b34991ef458b0fbfb08200d111555e33d53fa24524025ba9d2f9e86a45a5a","first_computed_at":"2026-05-18T03:22:39.569481Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:22:39.569481Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"DV5wQ07lQDBpim4rnDvqjmsrn1pKt6wtSvKwsyUPXa1eYouFsmA9mNecRBjtNInZ6b89E3x74Q/2uDxvlvTrCg==","signature_status":"signed_v1","signed_at":"2026-05-18T03:22:39.570107Z","signed_message":"canonical_sha256_bytes"},"source_id":"1207.1110","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:abd3ac00e54cfd501a25d58535596af74f72fd44214005183c132857a24d6854","sha256:53cbb8c8251e26cb6a1af085d3179af1a5c3c0f90fad41b3e04e449d4a7fb701"],"state_sha256":"44e721ab04ed903a3ec28f52b3e9e9f4771b76d868ff150c36729b74ef4fa43f"}