{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:PF3MZ7CI2ZVEZVMBKTQUSSX2WW","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":"093f852dbcb48ce20843d84dd047da698424b2714946218a27a32ca50d8ad49a","cross_cats_sorted":["hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2011-10-07T18:35:05Z","title_canon_sha256":"4155f5f9fae198dd1ecf59cfc9c9c544dd84413f01badee164128a6f2a73678f"},"schema_version":"1.0","source":{"id":"1110.1606","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1110.1606","created_at":"2026-05-18T02:00:16Z"},{"alias_kind":"arxiv_version","alias_value":"1110.1606v1","created_at":"2026-05-18T02:00:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1110.1606","created_at":"2026-05-18T02:00:16Z"},{"alias_kind":"pith_short_12","alias_value":"PF3MZ7CI2ZVE","created_at":"2026-05-18T12:26:39Z"},{"alias_kind":"pith_short_16","alias_value":"PF3MZ7CI2ZVEZVMB","created_at":"2026-05-18T12:26:39Z"},{"alias_kind":"pith_short_8","alias_value":"PF3MZ7CI","created_at":"2026-05-18T12:26:39Z"}],"graph_snapshots":[{"event_id":"sha256:fdc5416332819f863af445c0233494ee3bf78a43c203d95fc544d2bb86e63def","target":"graph","created_at":"2026-05-18T02:00:16Z","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 have calculated the Bjorken-x dependence of the kaon and pion valence quark distributions in a statistical model. Each meson is described by a Fock state expansion in terms of quarks, antiquarks and gluons. Although Drell-Yan experiments have measured the pion valence quark distributions directly, the kaon valence quark distributions have only been deduced from the measurement of the ratio $\\bar{u}_K(x)/\\bar{u}_\\pi(x)$. We show that, using no free parameters, our model predicts the decrease of this ratio with increasing x.","authors_text":"Jeffrey Tibbals, Mary Alberg","cross_cats":["hep-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2011-10-07T18:35:05Z","title":"Comparison of kaon and pion valence quark distributions in a statistical model"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1110.1606","kind":"arxiv","version":1},"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":"sha256:7a8dd524c1f2fbdc60a865d932f732a3e0b7ac388ece985fdcc95dd943407ada","target":"record","created_at":"2026-05-18T02:00:16Z","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":"093f852dbcb48ce20843d84dd047da698424b2714946218a27a32ca50d8ad49a","cross_cats_sorted":["hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2011-10-07T18:35:05Z","title_canon_sha256":"4155f5f9fae198dd1ecf59cfc9c9c544dd84413f01badee164128a6f2a73678f"},"schema_version":"1.0","source":{"id":"1110.1606","kind":"arxiv","version":1}},"canonical_sha256":"7976ccfc48d66a4cd58154e1494afab585d909a123c5c1f2a24df6c120560ed3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7976ccfc48d66a4cd58154e1494afab585d909a123c5c1f2a24df6c120560ed3","first_computed_at":"2026-05-18T02:00:16.358865Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:00:16.358865Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"LDnCuhdeAK1MNDy4Wsf+FSlfm0G9JfsstxbN9UQrEaJr7anSMhCNxA+OJgTFmPKN32TLn94Q4d5iyJe+jKWLAw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:00:16.359423Z","signed_message":"canonical_sha256_bytes"},"source_id":"1110.1606","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7a8dd524c1f2fbdc60a865d932f732a3e0b7ac388ece985fdcc95dd943407ada","sha256:fdc5416332819f863af445c0233494ee3bf78a43c203d95fc544d2bb86e63def"],"state_sha256":"74207ffea66bb5c7f76ead9c93d4e00a5645017d731f55538b38474b83a4426d"}