{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2014:JZPKYZCMKFBZKGXYL7B2L7YIXL","short_pith_number":"pith:JZPKYZCM","schema_version":"1.0","canonical_sha256":"4e5eac644c5143951af85fc3a5ff08bad634fcce0bc5779d3272f43224d6d9f8","source":{"kind":"arxiv","id":"1410.7027","version":2},"attestation_state":"computed","paper":{"title":"On the extraction of the intrinsic light-quark sea in the proton","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["nucl-ex","nucl-th"],"primary_cat":"hep-ph","authors_text":"Jen-Chieh Peng, Wen-Chen Chang","submitted_at":"2014-10-26T13:29:57Z","abstract_excerpt":"The HERMES collaboration recently reported a reevaluation of the strange-quark parton distribution, $S(x)$, based on kaon production in semi-inclusive deep-inelastic scattering. Two distinct results on $S(x)$ at the $x> 0.1$ region, one with a sizable magnitude and another with a vanishing content, were reported. We show that the latter result is due to a particular assumption adopted in the analysis. The impact of the new HERMES $S(x)$ result on the extraction of intrinsic light-quark sea in the proton is discussed. Given the large uncertainty in the kaon fragmentation function, we find that "},"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":"1410.7027","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2014-10-26T13:29:57Z","cross_cats_sorted":["nucl-ex","nucl-th"],"title_canon_sha256":"23f8ee10a56d7f262bd876dc42acca3208d7ce73ad899438976dc9917f918bf5","abstract_canon_sha256":"52a93a8d696cd93aefe206ce634fa7f4708fdeee78b71e51b1d714952332ed67"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:32:30.608000Z","signature_b64":"tQ9yJlmfEg+yZ7oWjH8yWcUFX8QJmVuAJO0LVpW7PRa7PW0hPVchKRudPeOWyRzQTwwm/jeSzU2GeCYSBAshCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4e5eac644c5143951af85fc3a5ff08bad634fcce0bc5779d3272f43224d6d9f8","last_reissued_at":"2026-05-18T01:32:30.607350Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:32:30.607350Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"On the extraction of the intrinsic light-quark sea in the proton","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["nucl-ex","nucl-th"],"primary_cat":"hep-ph","authors_text":"Jen-Chieh Peng, Wen-Chen Chang","submitted_at":"2014-10-26T13:29:57Z","abstract_excerpt":"The HERMES collaboration recently reported a reevaluation of the strange-quark parton distribution, $S(x)$, based on kaon production in semi-inclusive deep-inelastic scattering. Two distinct results on $S(x)$ at the $x> 0.1$ region, one with a sizable magnitude and another with a vanishing content, were reported. We show that the latter result is due to a particular assumption adopted in the analysis. The impact of the new HERMES $S(x)$ result on the extraction of intrinsic light-quark sea in the proton is discussed. Given the large uncertainty in the kaon fragmentation function, we find that "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1410.7027","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":"1410.7027","created_at":"2026-05-18T01:32:30.607459+00:00"},{"alias_kind":"arxiv_version","alias_value":"1410.7027v2","created_at":"2026-05-18T01:32:30.607459+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1410.7027","created_at":"2026-05-18T01:32:30.607459+00:00"},{"alias_kind":"pith_short_12","alias_value":"JZPKYZCMKFBZ","created_at":"2026-05-18T12:28:35.611951+00:00"},{"alias_kind":"pith_short_16","alias_value":"JZPKYZCMKFBZKGXY","created_at":"2026-05-18T12:28:35.611951+00:00"},{"alias_kind":"pith_short_8","alias_value":"JZPKYZCM","created_at":"2026-05-18T12:28:35.611951+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/JZPKYZCMKFBZKGXYL7B2L7YIXL","json":"https://pith.science/pith/JZPKYZCMKFBZKGXYL7B2L7YIXL.json","graph_json":"https://pith.science/api/pith-number/JZPKYZCMKFBZKGXYL7B2L7YIXL/graph.json","events_json":"https://pith.science/api/pith-number/JZPKYZCMKFBZKGXYL7B2L7YIXL/events.json","paper":"https://pith.science/paper/JZPKYZCM"},"agent_actions":{"view_html":"https://pith.science/pith/JZPKYZCMKFBZKGXYL7B2L7YIXL","download_json":"https://pith.science/pith/JZPKYZCMKFBZKGXYL7B2L7YIXL.json","view_paper":"https://pith.science/paper/JZPKYZCM","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1410.7027&json=true","fetch_graph":"https://pith.science/api/pith-number/JZPKYZCMKFBZKGXYL7B2L7YIXL/graph.json","fetch_events":"https://pith.science/api/pith-number/JZPKYZCMKFBZKGXYL7B2L7YIXL/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/JZPKYZCMKFBZKGXYL7B2L7YIXL/action/timestamp_anchor","attest_storage":"https://pith.science/pith/JZPKYZCMKFBZKGXYL7B2L7YIXL/action/storage_attestation","attest_author":"https://pith.science/pith/JZPKYZCMKFBZKGXYL7B2L7YIXL/action/author_attestation","sign_citation":"https://pith.science/pith/JZPKYZCMKFBZKGXYL7B2L7YIXL/action/citation_signature","submit_replication":"https://pith.science/pith/JZPKYZCMKFBZKGXYL7B2L7YIXL/action/replication_record"}},"created_at":"2026-05-18T01:32:30.607459+00:00","updated_at":"2026-05-18T01:32:30.607459+00:00"}