{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2012:YCFTJGI66RMLB673BAQA2EIVKX","short_pith_number":"pith:YCFTJGI6","schema_version":"1.0","canonical_sha256":"c08b34991ef458b0fbfb08200d111555e33d53fa24524025ba9d2f9e86a45a5a","source":{"kind":"arxiv","id":"1207.1110","version":2},"attestation_state":"computed","paper":{"title":"<x>_{u-d} from lattice QCD at nearly physical quark masses","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ph"],"primary_cat":"hep-lat","authors_text":"Andrea Nobile, Andreas Schafer, Andre Sternbeck, Benjamin Glaessle, Dirk Pleiter, Gunnar S. Bali, Johannes Najjar, Meinulf Gockeler, Mridupawan Deka, Sara Collins","submitted_at":"2012-07-04T20:04:12Z","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."},"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":"1207.1110","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2012-07-04T20:04:12Z","cross_cats_sorted":["hep-ph"],"title_canon_sha256":"f586ccce6dd7e580787aa65be48598bba70e5ed46372995ed5d7bea23b3e4afe","abstract_canon_sha256":"1631ec50cdab8c84d88748f2ab416983e175535cef11c392bada89cb299eb0f6"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:22:39.570107Z","signature_b64":"DV5wQ07lQDBpim4rnDvqjmsrn1pKt6wtSvKwsyUPXa1eYouFsmA9mNecRBjtNInZ6b89E3x74Q/2uDxvlvTrCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c08b34991ef458b0fbfb08200d111555e33d53fa24524025ba9d2f9e86a45a5a","last_reissued_at":"2026-05-18T03:22:39.569481Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:22:39.569481Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"<x>_{u-d} from lattice QCD at nearly physical quark masses","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ph"],"primary_cat":"hep-lat","authors_text":"Andrea Nobile, Andreas Schafer, Andre Sternbeck, Benjamin Glaessle, Dirk Pleiter, Gunnar S. Bali, Johannes Najjar, Meinulf Gockeler, Mridupawan Deka, Sara Collins","submitted_at":"2012-07-04T20:04:12Z","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."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1207.1110","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"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":"1207.1110","created_at":"2026-05-18T03:22:39.569582+00:00"},{"alias_kind":"arxiv_version","alias_value":"1207.1110v2","created_at":"2026-05-18T03:22:39.569582+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1207.1110","created_at":"2026-05-18T03:22:39.569582+00:00"},{"alias_kind":"pith_short_12","alias_value":"YCFTJGI66RML","created_at":"2026-05-18T12:27:27.928770+00:00"},{"alias_kind":"pith_short_16","alias_value":"YCFTJGI66RMLB673","created_at":"2026-05-18T12:27:27.928770+00:00"},{"alias_kind":"pith_short_8","alias_value":"YCFTJGI6","created_at":"2026-05-18T12:27:27.928770+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/YCFTJGI66RMLB673BAQA2EIVKX","json":"https://pith.science/pith/YCFTJGI66RMLB673BAQA2EIVKX.json","graph_json":"https://pith.science/api/pith-number/YCFTJGI66RMLB673BAQA2EIVKX/graph.json","events_json":"https://pith.science/api/pith-number/YCFTJGI66RMLB673BAQA2EIVKX/events.json","paper":"https://pith.science/paper/YCFTJGI6"},"agent_actions":{"view_html":"https://pith.science/pith/YCFTJGI66RMLB673BAQA2EIVKX","download_json":"https://pith.science/pith/YCFTJGI66RMLB673BAQA2EIVKX.json","view_paper":"https://pith.science/paper/YCFTJGI6","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1207.1110&json=true","fetch_graph":"https://pith.science/api/pith-number/YCFTJGI66RMLB673BAQA2EIVKX/graph.json","fetch_events":"https://pith.science/api/pith-number/YCFTJGI66RMLB673BAQA2EIVKX/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/YCFTJGI66RMLB673BAQA2EIVKX/action/timestamp_anchor","attest_storage":"https://pith.science/pith/YCFTJGI66RMLB673BAQA2EIVKX/action/storage_attestation","attest_author":"https://pith.science/pith/YCFTJGI66RMLB673BAQA2EIVKX/action/author_attestation","sign_citation":"https://pith.science/pith/YCFTJGI66RMLB673BAQA2EIVKX/action/citation_signature","submit_replication":"https://pith.science/pith/YCFTJGI66RMLB673BAQA2EIVKX/action/replication_record"}},"created_at":"2026-05-18T03:22:39.569582+00:00","updated_at":"2026-05-18T03:22:39.569582+00:00"}