{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:WPFDGZMZUIE2F46A4CQFP6KFQQ","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":"c049a7a728e1ba60dbed2d4b9344468890c69052d3dfe8debb40a8fd90cf78c2","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2011-04-18T17:59:47Z","title_canon_sha256":"15c3526e14bb96e1a3dcd04394cf1cd7389e9e25519088fe12b996e6db0a44d4"},"schema_version":"1.0","source":{"id":"1104.3551","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1104.3551","created_at":"2026-05-18T04:24:04Z"},{"alias_kind":"arxiv_version","alias_value":"1104.3551v1","created_at":"2026-05-18T04:24:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1104.3551","created_at":"2026-05-18T04:24:04Z"},{"alias_kind":"pith_short_12","alias_value":"WPFDGZMZUIE2","created_at":"2026-05-18T12:26:44Z"},{"alias_kind":"pith_short_16","alias_value":"WPFDGZMZUIE2F46A","created_at":"2026-05-18T12:26:44Z"},{"alias_kind":"pith_short_8","alias_value":"WPFDGZMZ","created_at":"2026-05-18T12:26:44Z"}],"graph_snapshots":[{"event_id":"sha256:bb6779cd1f01b68838ef12f7b6e1e27896b7803249f11467ae91e8cddac2e55c","target":"graph","created_at":"2026-05-18T04:24:04Z","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":"In this work we study the strange sea of the proton using a version of the Meson Cloud Model containing both, efective and perturbative degrees of freedom. We construct the $s$ and $\\bar{s}$ parton distributions functions at the initial energy scale, $Q_0^2$, where QCD evolution starts. The initial $s$ and $\\bar s$ pdfs depend on a number of parameters which we fix by comparison to parameterizations of the strange sea of the nucleon obtained in a recent global fit to experimental data, allowing for a $s-\\bar{s}$ asymmetry. We show that the model describes well the strange sea of the proton and","authors_text":"C. Avila, J.C. Sanabria, J. Magnin, L. Salazar-Garcia","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2011-04-18T17:59:47Z","title":"The structure of the strange sea of the proton"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1104.3551","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":"sha256:06c9bd8dd025343d1c78a37f1eaefe5b501977c1bc9860c05138390209d2b1a3","target":"record","created_at":"2026-05-18T04:24:04Z","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":"c049a7a728e1ba60dbed2d4b9344468890c69052d3dfe8debb40a8fd90cf78c2","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2011-04-18T17:59:47Z","title_canon_sha256":"15c3526e14bb96e1a3dcd04394cf1cd7389e9e25519088fe12b996e6db0a44d4"},"schema_version":"1.0","source":{"id":"1104.3551","kind":"arxiv","version":1}},"canonical_sha256":"b3ca336599a209a2f3c0e0a057f945843c63235fc6d453b3f2bdd3800e1173c6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b3ca336599a209a2f3c0e0a057f945843c63235fc6d453b3f2bdd3800e1173c6","first_computed_at":"2026-05-18T04:24:04.513098Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:24:04.513098Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"M8BfRzlCW7oUbLefg5kTCYtnecFqmnTfj6vF9LL50toExDgyUGtkZtY+FsTBUFFuLS51usUvaoHWj3dRSCTTBA==","signature_status":"signed_v1","signed_at":"2026-05-18T04:24:04.513661Z","signed_message":"canonical_sha256_bytes"},"source_id":"1104.3551","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:06c9bd8dd025343d1c78a37f1eaefe5b501977c1bc9860c05138390209d2b1a3","sha256:bb6779cd1f01b68838ef12f7b6e1e27896b7803249f11467ae91e8cddac2e55c"],"state_sha256":"e45e3f33a0898a2a807c5677069f7b8aa7fd0aa8f8072f4ce52b519103a8ff51"}