{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:MKMUEF5CMXOFNHCP4VPNCNJMUT","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":"a652cb186af731dd89066973a149547fcb5b9d3aa05954c53242e705e9d670ef","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2015-12-26T22:29:17Z","title_canon_sha256":"c3c92d2a2f2d9a82365b6e898f24c26ef5cd5553595b774d5892d81047f4fd2f"},"schema_version":"1.0","source":{"id":"1512.08152","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1512.08152","created_at":"2026-05-18T01:04:14Z"},{"alias_kind":"arxiv_version","alias_value":"1512.08152v3","created_at":"2026-05-18T01:04:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1512.08152","created_at":"2026-05-18T01:04:14Z"},{"alias_kind":"pith_short_12","alias_value":"MKMUEF5CMXOF","created_at":"2026-05-18T12:29:32Z"},{"alias_kind":"pith_short_16","alias_value":"MKMUEF5CMXOFNHCP","created_at":"2026-05-18T12:29:32Z"},{"alias_kind":"pith_short_8","alias_value":"MKMUEF5C","created_at":"2026-05-18T12:29:32Z"}],"graph_snapshots":[{"event_id":"sha256:a9dc75d76c5422448b7771c866ae691c397f70a31f7532800dd578913aabb5a5","target":"graph","created_at":"2026-05-18T01:04:14Z","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 hidden charm pentaquark state $P_c(4450)$ observed recently by the LHCb collaboration may be of molecular nature, as advocated by some unitary approaches that also predict pentaquark partners in the strangeness $S=-1$ sector. In this work we argue that a hidden-charm strange pentaquark could be seen from the decay of the $\\Lambda_b$, just as in the case of the non-strange $P_c(4450)$, but looking into the $J/\\psi \\eta \\Lambda$ decay mode and forming the invariant mass spectrum of $J/\\psi\\Lambda$ pairs. In the model presented here, which assumes a standard weak decay topology and incorporat","authors_text":"A. Feijoo, A. Ramos, E. Oset, V.K. Magas","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2015-12-26T22:29:17Z","title":"A hidden-charm $S=-1$ pentaquark from the decay of $\\Lambda_b$ into $J/\\psi \\eta \\Lambda$"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1512.08152","kind":"arxiv","version":3},"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:bc6afa656f9f51040a42b832fe3aecf5449ec34669f2487d015dc15beefacff9","target":"record","created_at":"2026-05-18T01:04:14Z","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":"a652cb186af731dd89066973a149547fcb5b9d3aa05954c53242e705e9d670ef","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2015-12-26T22:29:17Z","title_canon_sha256":"c3c92d2a2f2d9a82365b6e898f24c26ef5cd5553595b774d5892d81047f4fd2f"},"schema_version":"1.0","source":{"id":"1512.08152","kind":"arxiv","version":3}},"canonical_sha256":"62994217a265dc569c4fe55ed1352ca4cb067c612d58bef174248d4d2c3889b9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"62994217a265dc569c4fe55ed1352ca4cb067c612d58bef174248d4d2c3889b9","first_computed_at":"2026-05-18T01:04:14.037003Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:04:14.037003Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ewM3yf/IrzTmWBxk8wVInuIfw/U1aNkzbx0Mw3DajvKXNj2B95upp22FVuqd68QpOd09ghzHJD2G0TqusNS9AQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:04:14.037444Z","signed_message":"canonical_sha256_bytes"},"source_id":"1512.08152","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:bc6afa656f9f51040a42b832fe3aecf5449ec34669f2487d015dc15beefacff9","sha256:a9dc75d76c5422448b7771c866ae691c397f70a31f7532800dd578913aabb5a5"],"state_sha256":"7c5793b7d5ed4897b038414a5e931937313f53e06f417cfe0d35308fe765bc04"}