{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:44J2IN36UYZGQU7FWZS75I6SYT","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":"f6095c527485c6da3fb09899a8495cbf1e5b83eb8401b8d03cd1fe1a25ace9a2","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2017-04-04T09:49:26Z","title_canon_sha256":"76c1de4baadf784accada948226c2dd36d57500da6ab1ce16354aee73669d6f4"},"schema_version":"1.0","source":{"id":"1704.00935","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1704.00935","created_at":"2026-05-18T00:45:38Z"},{"alias_kind":"arxiv_version","alias_value":"1704.00935v1","created_at":"2026-05-18T00:45:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1704.00935","created_at":"2026-05-18T00:45:38Z"},{"alias_kind":"pith_short_12","alias_value":"44J2IN36UYZG","created_at":"2026-05-18T12:30:58Z"},{"alias_kind":"pith_short_16","alias_value":"44J2IN36UYZGQU7F","created_at":"2026-05-18T12:30:58Z"},{"alias_kind":"pith_short_8","alias_value":"44J2IN36","created_at":"2026-05-18T12:30:58Z"}],"graph_snapshots":[{"event_id":"sha256:aef23c1c2334334e4d902c7ff73baf84304bd4ba0d8932fcbe0fd00b632f6623","target":"graph","created_at":"2026-05-18T00:45:38Z","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":"The CLAS Collaboration recently reported measured ratios of pion and kaon electroproduction cross sections from a proton target and extracted the ratios for light and strange quark--antiquark pairs, ${u\\bar{u}}/ {d\\bar{d}}$ and ${s\\bar{s}}/ {d\\bar{d}}$. Within an extended chiral constituent quark formalism, we investigate contributions to those ratios from the nonperturbative mechanism due to all possible intrinsic $|uudQ \\bar{Q}\\rangle$ Fock states in the proton; with $Q \\bar{Q} \\equiv u\\bar{u},~ d\\bar{d},~s\\bar{s},~c\\bar{c}$. Our results are compared with the CLAS data and findings from othe","authors_text":"B. Saghai, C. S. An","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2017-04-04T09:49:26Z","title":"Intrinsic light and strange quark--antiquark pairs in the proton and nonperturbative strangeness suppression"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1704.00935","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":"sha256:90d50a836aad6b89b2eb1b1cde53a7017b64b7a369bcdafa0e4f0810ce232201","target":"record","created_at":"2026-05-18T00:45:38Z","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":"f6095c527485c6da3fb09899a8495cbf1e5b83eb8401b8d03cd1fe1a25ace9a2","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2017-04-04T09:49:26Z","title_canon_sha256":"76c1de4baadf784accada948226c2dd36d57500da6ab1ce16354aee73669d6f4"},"schema_version":"1.0","source":{"id":"1704.00935","kind":"arxiv","version":1}},"canonical_sha256":"e713a4377ea6326853e5b665fea3d2c4c8129139e6d46129738eaf2e9e0b9e8c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e713a4377ea6326853e5b665fea3d2c4c8129139e6d46129738eaf2e9e0b9e8c","first_computed_at":"2026-05-18T00:45:38.716673Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:45:38.716673Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"VJoZOO1qElsjQo4q7ITcNi/VvqkTjP9KnHw/TuGbR0JdEXEi5UO/FlBWq5Rawp5DJlLt2OutmO3XXd1hzKaDDw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:45:38.717381Z","signed_message":"canonical_sha256_bytes"},"source_id":"1704.00935","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:90d50a836aad6b89b2eb1b1cde53a7017b64b7a369bcdafa0e4f0810ce232201","sha256:aef23c1c2334334e4d902c7ff73baf84304bd4ba0d8932fcbe0fd00b632f6623"],"state_sha256":"aed3253989c8265057f6f4a2787d7fa440436b69512a35689f0d824bde0fc997"}